Oil line for gauge

[Richard Farrant]

Originally Posted by Lynn Eades

I'm with you Rob. Many gauges come with a very fine capilliary tube. Some are long. There is no way to bleed the air out of them. The gauge is usually mounted higher than the other end and is not designed to be bled of air. Thick cold oil in the tube would have friction and be slow to move. However air would be instantaneous.

Lynn,
We are not talking sealed capilliary gauges, the ones I were referring to have a pipe nut connection at the gauge, you slacken the nut off and run the engine until oil appears, nip up the nut and it is all sorted.